static gboolean
backend_get_updates_thread (PkBackend *backend)
{
struct stat cache;
time_t one_hour_ago;
PacmanTransaction *transaction = NULL;
PacmanTransactionFlags flags = PACMAN_TRANSACTION_FLAGS_NONE;
const PacmanList *packages;
g_return_val_if_fail (local_database != NULL, FALSE);
g_return_val_if_fail (pacman != NULL, FALSE);
g_return_val_if_fail (backend != NULL, FALSE);
time (&one_hour_ago);
one_hour_ago -= 60 * 60;
/* refresh databases if they are older than an hour */
if (g_stat (PACMAN_CACHE_PATH, &cache) < 0 || cache.st_mtime < one_hour_ago) {
transaction = backend_transaction_run (backend, PACMAN_TRANSACTION_UPDATE, flags, NULL);
if (transaction != NULL) {
g_object_unref (transaction);
} else {
backend_finished (backend);
return FALSE;
}
} else {
g_debug ("pacman: databases have been refreshed recently");
}
/* find outdated and replacement packages */
for (packages = pacman_database_get_packages (local_database); packages != NULL; packages = pacman_list_next (packages)) {
PacmanPackage *package = (PacmanPackage *) pacman_list_get (packages);
PacmanPackage *upgrade = pacman_package_find_upgrade (package, pacman_manager_get_sync_databases (pacman));
if (backend_cancelled (backend)) {
break;
}
if (upgrade != NULL) {
PkInfoEnum info;
if (pacman_package_should_ignore (upgrade)) {
info = PK_INFO_ENUM_BLOCKED;
} else if (pacman_package_should_sync_first (upgrade)) {
info = PK_INFO_ENUM_IMPORTANT;
} else {
info = PK_INFO_ENUM_NORMAL;
}
backend_package (backend, upgrade, info);
}
}
backend_finished (backend);
return TRUE;
}
/**
* pacman_manager_find_missing_dependencies:
* @manager: A #PacmanManager.
* @remove: A list of #PacmanPackage.
* @install: A list of #PacmanPackage.
*
* Finds dependencies of installed packages that will no longer be satisfied once the packages in @remove are removed and those in @install are installed.
*
* Returns: A list of #PacmanMissingDependency. Free the contents with pacman_missing_dependency_free(), then free the list with pacman_list_free().
*/
PacmanList *pacman_manager_find_missing_dependencies (PacmanManager *manager, const PacmanList *remove, const PacmanList *install) {
PacmanDatabase *database;
g_return_val_if_fail (manager != NULL, NULL);
database = pacman_manager_get_local_database (manager);
g_return_val_if_fail (database != NULL, NULL);
return alpm_checkdeps ((PacmanList *) pacman_database_get_packages (database), 1, (PacmanList *) remove, (PacmanList *) install);
}
